P0699 2017 GMC Sierra Code - 5V Reference 3 Circuit High Voltage
Quick Answer
The Engine Control Module (ECM) has four (4) internal 5 Volt reference circuits (Some models have two (2) internal 5 Volt reference circuits). Common causes include Faulty Sensor on 5 Volt circuit, Sensor on 5 Volt circuit harness is open or shorted, Sensor on 5 Volt circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0699 2017 GMC Sierra indicates 5V Reference 3 Circuit High Voltage.
- Common causes
- Common causes include Faulty Sensor on 5 Volt circuit, Sensor on 5 Volt circuit harness is open or shorted, Sensor on 5 Volt circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0699 2017 GMC Sierra Description
What are the Possible Causes of the DTC P0699 2017 GMC Sierra?
- Faulty Sensor on 5 Volt circuit
- Sensor on 5 Volt circuit harness is open or shorted
- Sensor on 5 Volt circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0699 2017 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
The 5 Volt reference 3 circuit provides 5 Volt to the following sensors: (Some models may have different sensors, please consult the factory service manual for the list of sensors for your model and year)
- Accelerator pedal position sensor 2
- Manifold absolute pressure sensor
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0699 2017 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0699 2017 GMC Sierra code?
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Need Help with the Code?
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Frequently Asked Questions about P0699 2017 GMC Sierra Code
What does the OBDII code P0699 mean for a 2017 GMC Sierra?
P0699 indicates a problem with the 5V Reference 3 Circuit, specifically high voltage detected in the circuit.
What are the common symptoms of code P0699 in a 2017 GMC Sierra?
Symptoms may include an illuminated check engine light, erratic engine performance, and issues with sensors reliant on the 5V reference circuit.
What causes code P0699 in a 2017 GMC Sierra?
Common causes include a short to voltage in the 5V reference circuit, damaged wiring, a faulty sensor, or a malfunctioning powertrain control module (PCM).
Can a bad sensor cause code P0699?
Yes, a faulty sensor connected to the 5V reference circuit can cause this code by sending incorrect voltage signals.
How do you diagnose code P0699 in a 2017 GMC Sierra?
Diagnosis typically involves inspecting wiring and connectors for damage, testing the sensors connected to the 5V reference circuit, and checking the PCM for faults.
Is code P0699 serious?
While the vehicle may still be drivable, ignoring this code can lead to further electrical issues and unreliable sensor data, potentially affecting performance.
Can I fix code P0699 myself?
If you’re experienced with automotive repairs, you can inspect and replace damaged wiring or sensors. Otherwise, it’s best to seek professional assistance.
How much does it cost to repair code P0699 on a 2017 GMC Sierra?
The cost varies depending on whether it’s a wiring issue, sensor replacement, or PCM repair, typically ranging from $100 to $600.
Will clearing the code P0699 solve the problem permanently?
No, clearing the code without addressing the underlying issue will only temporarily hide the problem, and the code will likely return.
Can code P0699 affect other systems in the vehicle?
Yes, since the 5V reference circuit is linked to multiple sensors, a fault may impact systems like fuel management, emissions, or engine performance.
Discuss the causes and fixes for P0699 2017 GMC Sierra OBDII Code
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